/*
 * Copyright (C) 2015 The Gravitee team (http://gravitee.io)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
// eslint:disable-next-line:no-var-requires
require('@gravitee/ui-components/wc/gv-chart-pie');
const WidgetChartPieComponent: ng.IComponentOptions = {
  template: require('html-loader!./widget-chart-pie.html').default, // eslint-disable-line @typescript-eslint/no-var-requires
  bindings: {
    data: '<',
  },
  require: {
    parent: '^gvWidget',
  },
  controller: [
    '$scope',
    '$element',
    function widgetChartPieController($scope, $element) {
      this.$onInit = () => {
        $scope.$on('onWidgetResize', this.onResize.bind(this));
      };

      this.$onChanges = function (changes) {
        if (changes.data) {
          this.gvChartPie = $element.children()[0];
          this.options = {
            name: this.parent.widget.title,
            data: Object.keys(changes.data.currentValue.values || {}).map((label, idx) => {
              // The next lines are weird and would need a complete refactor, it
              // will happen with the Angular migration of this component
              if (this.parent.widget.chart.labels && this.parent.widget.chart.labels.includes(label)) {
                const index = this.parent.widget.chart.labels.indexOf(label);
                return {
                  name: this.parent.widget.chart.labels[index],
                  color: this.parent.widget.chart.colors[index],
                };
              }

              return {
                // Set the color and name based on the chart config (coming from the parent)
                name: idx < this.parent.widget.chart.colors.length ? this.parent.widget.chart.labels[idx] : label,
                color: idx < this.parent.widget.chart.colors.length ? this.parent.widget.chart.colors[idx] : undefined,
              };
            }),
          };

          const series = {
            values: changes.data.currentValue ? changes.data.currentValue.values : {},
          };

          // Send data to gv-chart-pie
          this.gvChartPie.setAttribute('series', JSON.stringify(series));
          this.gvChartPie.setAttribute('options', JSON.stringify(this.options));
        }
      };

      this.onResize = () => {
        this.options = {
          ...this.options,
          height: this.gvChartPie.offsetHeight,
          width: this.gvChartPie.offsetWidth,
        };
        this.gvChartPie.setAttribute('options', JSON.stringify(this.options));
      };
    },
  ],
};

export default WidgetChartPieComponent;
